1553156161155 has 16 divisors (see below), whose sum is σ = 2761166508960. Its totient is φ = 828349952544.

The previous prime is 1553156161153. The next prime is 1553156161169. The reversal of 1553156161155 is 5511616513551.

1553156161155 is a `hidden beast` number, since 1 + 5 + 5 + 3 + 15 + 616 + 1 + 15 + 5 = 666.

It is not a de Polignac number, because 1553156161155 - 2¹ = 1553156161153 is a prime.

It is a super-3 number, since 3×1553156161155³ (a number of 38 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1553156161155.

It is not an unprimeable number, because it can be changed into a prime (1553156161153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5752430092 + ... + 5752430361.

It is an arithmetic number, because the mean of its divisors is an integer number (172572906810).

Almost surely, 2^{1553156161155} is an apocalyptic number.

1553156161155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1553156161155 is a deficient number, since it is larger than the sum of its proper divisors (1208010347805).

1553156161155 is a wasteful number, since it uses less digits than its factorization.

1553156161155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11504860467 (or 11504860461 counting only the distinct ones).

The product of its digits is 337500, while the sum is 45.

The spelling of 1553156161155 in words is "one trillion, five hundred fifty-three billion, one hundred fifty-six million, one hundred sixty-one thousand, one hundred fifty-five".