55157026616 has 32 divisors (see below), whose sum is σ = 107928599040. Its totient is φ = 26376348768.

The previous prime is 55157026597. The next prime is 55157026627. The reversal of 55157026616 is 61662075155.

It is a super-2 number, since 2×55157026616² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2640485 + ... + 2661291.

It is an arithmetic number, because the mean of its divisors is an integer number (3372768720).

Almost surely, 2^55157026616 is an apocalyptic number.

It is an amenable number.

55157026616 is a deficient number, since it is larger than the sum of its proper divisors (52771572424).

55157026616 is a wasteful number, since it uses less digits than its factorization.

55157026616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35243 (or 35239 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 55157026616 in words is "fifty-five billion, one hundred fifty-seven million, twenty-six thousand, six hundred sixteen".