61527570132 has 96 divisors (see below), whose sum is σ = 167973836800. Its totient is φ = 17161828992.

The previous prime is 61527570061. The next prime is 61527570133. The reversal of 61527570132 is 23107572516.

It is a happy number.

61527570132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61527570133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11226969 + ... + 11232447.

Almost surely, 2^61527570132 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 61527570132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83986918400).

61527570132 is an abundant number, since it is smaller than the sum of its proper divisors (106446266668).

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

61527570132 is a wasteful number, since it uses less digits than its factorization.

61527570132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645 (or 8643 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The spelling of 61527570132 in words is "sixty-one billion, five hundred twenty-seven million, five hundred seventy thousand, one hundred thirty-two".