61606631432 has 32 divisors (see below), whose sum is σ = 122446348920. Its totient is φ = 28958392320.

The previous prime is 61606631407. The next prime is 61606631459. The reversal of 61606631432 is 23413660616.

It can be written as a sum of positive squares in 4 ways, for example, as 61180043716 + 426587716 = 247346^2 + 20654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137273 + ... + 376904.

Almost surely, 2^61606631432 is an apocalyptic number.

It is an amenable number.

61606631432 is a deficient number, since it is larger than the sum of its proper divisors (60839717488).

61606631432 is a wasteful number, since it uses less digits than its factorization.

61606631432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515081 (or 515077 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 61606631432 in words is "sixty-one billion, six hundred six million, six hundred thirty-one thousand, four hundred thirty-two".