10621441425566 has 16 divisors (see below), whose sum is σ = 16207660589904. Its totient is φ = 5219550948864.

The previous prime is 10621441425559. The next prime is 10621441425589. The reversal of 10621441425566 is 66552414412601.

It is a super-2 number, since 2×10621441425566² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10621441425566.

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, 165731141 + ... + 165795216.

It is an arithmetic number, because the mean of its divisors is an integer number (1012978786869).

Almost surely, 2^{10621441425566} is an apocalyptic number.

10621441425566 is a deficient number, since it is larger than the sum of its proper divisors (5586219164338).

10621441425566 is a wasteful number, since it uses less digits than its factorization.

10621441425566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331526635.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 10621441425566 in words is "ten trillion, six hundred twenty-one billion, four hundred forty-one million, four hundred twenty-five thousand, five hundred sixty-six".