61620372206404 has 12 divisors (see below), whose sum is σ = 117638892394128. Its totient is φ = 28009260093800.

The previous prime is 61620372206381. The next prime is 61620372206447. The reversal of 61620372206404 is 40460227302616.

It is a super-2 number, since 2×61620372206404² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700231502302 + ... + 700231502389.

It is an arithmetic number, because the mean of its divisors is an integer number (9803241032844).

Almost surely, 2^{61620372206404} is an apocalyptic number.

It is an amenable number.

61620372206404 is a deficient number, since it is larger than the sum of its proper divisors (56018520187724).

61620372206404 is a wasteful number, since it uses less digits than its factorization.

61620372206404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400463004706 (or 1400463004704 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 61620372206404 in words is "sixty-one trillion, six hundred twenty billion, three hundred seventy-two million, two hundred six thousand, four hundred four".