61005244536 has 96 divisors (see below), whose sum is σ = 176769824400. Its totient is φ = 18948971520.

The previous prime is 61005244523. The next prime is 61005244561. The reversal of 61005244536 is 63544250016.

61005244536 is a `hidden beast` number, since 61 + 0 + 0 + 524 + 45 + 36 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61005244536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282081 + ... + 448976.

Almost surely, 2^61005244536 is an apocalyptic number.

It is an amenable number.

61005244536 is an abundant number, since it is smaller than the sum of its proper divisors (115764579864).

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

61005244536 is a wasteful number, since it uses less digits than its factorization.

61005244536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731149 (or 731142 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 61005244536 in words is "sixty-one billion, five million, two hundred forty-four thousand, five hundred thirty-six".