61010537536 has 112 divisors (see below), whose sum is σ = 134791630848. Its totient is φ = 27208857600.

The previous prime is 61010537503. The next prime is 61010537563. The reversal of 61010537536 is 63573501016.

It is a junction number, because it is equal to n+sod(n) for n = 61010537495 and 61010537504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22257126 + ... + 22259866.

It is an arithmetic number, because the mean of its divisors is an integer number (1203496704).

Almost surely, 2^61010537536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61010537536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67395815424).

61010537536 is an abundant number, since it is smaller than the sum of its proper divisors (73781093312).

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

61010537536 is a wasteful number, since it uses less digits than its factorization.

61010537536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3650 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 37.

The spelling of 61010537536 in words is "sixty-one billion, ten million, five hundred thirty-seven thousand, five hundred thirty-six".