61552432732 has 48 divisors (see below), whose sum is σ = 126051439360. Its totient is φ = 25749021312.

The previous prime is 61552432717. The next prime is 61552432751. The reversal of 61552432732 is 23723425516.

It is a congruent number.

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, 1884928 + ... + 1917304.

Almost surely, 2^61552432732 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 61552432732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63025719680).

61552432732 is an abundant number, since it is smaller than the sum of its proper divisors (64499006628).

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

61552432732 is a wasteful number, since it uses less digits than its factorization.

61552432732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34010 (or 34008 counting only the distinct ones).

The product of its digits is 302400, while the sum is 40.

The spelling of 61552432732 in words is "sixty-one billion, five hundred fifty-two million, four hundred thirty-two thousand, seven hundred thirty-two".