16401547613756 has 6 divisors (see below), whose sum is σ = 28702708324080. Its totient is φ = 8200773806876.

The previous prime is 16401547613723. The next prime is 16401547613777. The reversal of 16401547613756 is 65731674510461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2050193451716 + ... + 2050193451723.

It is an arithmetic number, because the mean of its divisors is an integer number (4783784720680).

Almost surely, 2^{16401547613756} is an apocalyptic number.

It is an amenable number.

16401547613756 is a deficient number, since it is larger than the sum of its proper divisors (12301160710324).

16401547613756 is a wasteful number, since it uses less digits than its factorization.

16401547613756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100386903443 (or 4100386903441 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 16401547613756 in words is "sixteen trillion, four hundred one billion, five hundred forty-seven million, six hundred thirteen thousand, seven hundred fifty-six".