61406311213456 has 80 divisors (see below), whose sum is σ = 130099560470208. Its totient is φ = 27845528371200.

The previous prime is 61406311213447. The next prime is 61406311213477. The reversal of 61406311213456 is 65431211360416.

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, 1982688051 + ... + 1982719021.

Almost surely, 2^{61406311213456} is an apocalyptic number.

It is an amenable number.

61406311213456 is an abundant number, since it is smaller than the sum of its proper divisors (68693249256752).

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

61406311213456 is a wasteful number, since it uses less digits than its factorization.

61406311213456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57440 (or 57434 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 61406311213456 in words is "sixty-one trillion, four hundred six billion, three hundred eleven million, two hundred thirteen thousand, four hundred fifty-six".