61156010154 has 64 divisors (see below), whose sum is σ = 130594996224. Its totient is φ = 19025677056.

The previous prime is 61156010131. The next prime is 61156010189. The reversal of 61156010154 is 45101065116.

It is a super-2 number, since 2×61156010154² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5977087 + ... + 5987309.

It is an arithmetic number, because the mean of its divisors is an integer number (2040546816).

Almost surely, 2^61156010154 is an apocalyptic number.

61156010154 is an abundant number, since it is smaller than the sum of its proper divisors (69438986070).

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

61156010154 is a wasteful number, since it uses less digits than its factorization.

61156010154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10731.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 61156010154 in words is "sixty-one billion, one hundred fifty-six million, ten thousand, one hundred fifty-four".