61620656601008 has 20 divisors (see below), whose sum is σ = 119635176229200. Its totient is φ = 30747062735424.

The previous prime is 61620656600999. The next prime is 61620656601017. The reversal of 61620656601008 is 80010665602616.

61620656601008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61620656600999) and next prime (61620656601017).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3954089783 + ... + 3954105366.

It is an arithmetic number, because the mean of its divisors is an integer number (5981758811460).

Almost surely, 2^{61620656601008} is an apocalyptic number.

It is an amenable number.

61620656601008 is a deficient number, since it is larger than the sum of its proper divisors (58014519628192).

61620656601008 is a wasteful number, since it uses less digits than its factorization.

61620656601008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7908195644 (or 7908195638 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 61620656601008 in words is "sixty-one trillion, six hundred twenty billion, six hundred fifty-six million, six hundred one thousand, eight".