2155654562653 has 8 divisors (see below), whose sum is σ = 2156924691000. Its totient is φ = 2154384680448.

The previous prime is 2155654562629. The next prime is 2155654562689. The reversal of 2155654562653 is 3562654565512.

It can be written as a sum of positive squares in 4 ways, for example, as 453707322084 + 1701947240569 = 673578^2 + 1304587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2155654562653 - 2¹³ = 2155654554461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2155654562594 and 2155654562603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155654562693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19209375 + ... + 19321267.

It is an arithmetic number, because the mean of its divisors is an integer number (269615586375).

Almost surely, 2^{2155654562653} is an apocalyptic number.

It is an amenable number.

2155654562653 is a deficient number, since it is larger than the sum of its proper divisors (1270128347).

2155654562653 is a wasteful number, since it uses less digits than its factorization.

2155654562653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123071.

The product of its digits is 32400000, while the sum is 55.

The spelling of 2155654562653 in words is "two trillion, one hundred fifty-five billion, six hundred fifty-four million, five hundred sixty-two thousand, six hundred fifty-three".