55111151157 has 16 divisors (see below), whose sum is σ = 81898925760. Its totient is φ = 32759569152.

The previous prime is 55111151153. The next prime is 55111151203. The reversal of 55111151157 is 75115111155.

It is not a de Polignac number, because 55111151157 - 2² = 55111151153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111151153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28436158 + ... + 28438095.

It is an arithmetic number, because the mean of its divisors is an integer number (5118682860).

Almost surely, 2^55111151157 is an apocalyptic number.

55111151157 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

55111151157 is a deficient number, since it is larger than the sum of its proper divisors (26787774603).

55111151157 is a wasteful number, since it uses less digits than its factorization.

55111151157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56874292.

The product of its digits is 4375, while the sum is 33.

The spelling of 55111151157 in words is "fifty-five billion, one hundred eleven million, one hundred fifty-one thousand, one hundred fifty-seven".