61156046412 has 24 divisors (see below), whose sum is σ = 158552713200. Its totient is φ = 20385348768.

The previous prime is 61156046411. The next prime is 61156046437. The reversal of 61156046412 is 21464065116.

61156046412 is a `hidden beast` number, since 6 + 1 + 1 + 5 + 6 + 0 + 4 + 641 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61156046411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283129737 + ... + 283129952.

It is an arithmetic number, because the mean of its divisors is an integer number (6606363050).

Almost surely, 2^61156046412 is an apocalyptic number.

It is an amenable number.

61156046412 is an abundant number, since it is smaller than the sum of its proper divisors (97396666788).

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

61156046412 is a wasteful number, since it uses less digits than its factorization.

61156046412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566259702 (or 566259694 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 61156046412 in words is "sixty-one billion, one hundred fifty-six million, forty-six thousand, four hundred twelve".