16261004462646 has 16 divisors (see below), whose sum is σ = 32522244412608. Its totient is φ = 5420295573000.

The previous prime is 16261004462639. The next prime is 16261004462719. The reversal of 16261004462646 is 64626440016261.

It is a super-2 number, since 2×16261004462646² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16261004462595 and 16261004462604.

It is a congruent number.

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, 8907880 + ... + 10576971.

It is an arithmetic number, because the mean of its divisors is an integer number (2032640275788).

Almost surely, 2^{16261004462646} is an apocalyptic number.

16261004462646 is an abundant number, since it is smaller than the sum of its proper divisors (16261239949962).

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

16261004462646 is a wasteful number, since it uses less digits than its factorization.

16261004462646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19623947.

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 16261004462646 in words is "sixteen trillion, two hundred sixty-one billion, four million, four hundred sixty-two thousand, six hundred forty-six".