61156632 has 48 divisors (see below), whose sum is σ = 159861240. Its totient is φ = 19495168.

The previous prime is 61156619. The next prime is 61156637. The reversal of 61156632 is 23665116.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61156632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61156637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10288 + ... + 15104.

Almost surely, 2^61156632 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 61156632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79930620).

61156632 is an abundant number, since it is smaller than the sum of its proper divisors (98704608).

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

61156632 is a wasteful number, since it uses less digits than its factorization.

61156632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872 (or 4845 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 61156632 is about 7820.2705835540. The cubic root of 61156632 is about 393.9863600799.

The spelling of 61156632 in words is "sixty-one million, one hundred fifty-six thousand, six hundred thirty-two".