1553356551061 has 8 divisors (see below), whose sum is σ = 1785182310720. Its totient is φ = 1324010211648.

The previous prime is 1553356551053. The next prime is 1553356551101. The reversal of 1553356551061 is 1601556533551.

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 1553356551061 - 2³ = 1553356551053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553356551011) 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, 619853716 + ... + 619856221.

It is an arithmetic number, because the mean of its divisors is an integer number (223147788840).

Almost surely, 2^{1553356551061} is an apocalyptic number.

It is an amenable number.

1553356551061 is a deficient number, since it is larger than the sum of its proper divisors (231825759659).

1553356551061 is a wasteful number, since it uses less digits than its factorization.

1553356551061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239710123.

The product of its (nonzero) digits is 1012500, while the sum is 46.

The spelling of 1553356551061 in words is "one trillion, five hundred fifty-three billion, three hundred fifty-six million, five hundred fifty-one thousand, sixty-one".