50111002222155 has 128 divisors (see below), whose sum is σ = 103437451008000. Its totient is φ = 22543745236992.

The previous prime is 50111002222147. The next prime is 50111002222157. The reversal of 50111002222155 is 55122220011105.

50111002222155 is a `hidden beast` number, since 501 + 1 + 1 + 0 + 0 + 2 + 2 + 2 + 2 + 155 = 666.

It is not a de Polignac number, because 50111002222155 - 2³ = 50111002222147 is a prime.

It is a super-2 number, since 2×50111002222155² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (50111002222157) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 30165352 + ... + 31783178.

It is an arithmetic number, because the mean of its divisors is an integer number (808105086000).

Almost surely, 2^{50111002222155} is an apocalyptic number.

50111002222155 is an abundant number, since it is smaller than the sum of its proper divisors (53326448785845).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50111002222155 is a wasteful number, since it uses less digits than its factorization.

50111002222155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618370 (or 1618364 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The spelling of 50111002222155 in words is "fifty trillion, one hundred eleven billion, two million, two hundred twenty-two thousand, one hundred fifty-five".