55157213628011 has 8 divisors (see below), whose sum is σ = 62787658201344. Its totient is φ = 47962794458920.

The previous prime is 55157213628007. The next prime is 55157213628017. The reversal of 55157213628011 is 11082631275155.

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

It is not a de Polignac number, because 55157213628011 - 2² = 55157213628007 is a prime.

It is a super-2 number, since 2×55157213628011² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55157213628017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109006350791 + ... + 109006351296.

It is an arithmetic number, because the mean of its divisors is an integer number (7848457275168).

Almost surely, 2^{55157213628011} is an apocalyptic number.

55157213628011 is a deficient number, since it is larger than the sum of its proper divisors (7630444573333).

55157213628011 is a wasteful number, since it uses less digits than its factorization.

55157213628011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218012702121.

The product of its (nonzero) digits is 504000, while the sum is 47.

The spelling of 55157213628011 in words is "fifty-five trillion, one hundred fifty-seven billion, two hundred thirteen million, six hundred twenty-eight thousand, eleven".