10401555502421 has 16 divisors (see below), whose sum is σ = 10579321057920. Its totient is φ = 10224753327360.

The previous prime is 10401555502399. The next prime is 10401555502439. The reversal of 10401555502421 is 12420555510401.

10401555502421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10401555502421 - 2⁴² = 6003508991317 is a prime.

It is a super-2 number, since 2×10401555502421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10401555532421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170400176 + ... + 170461206.

It is an arithmetic number, because the mean of its divisors is an integer number (661207566120).

Almost surely, 2^{10401555502421} is an apocalyptic number.

It is an amenable number.

10401555502421 is a deficient number, since it is larger than the sum of its proper divisors (177765555499).

10401555502421 is an equidigital number, since it uses as much as digits as its factorization.

10401555502421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68876.

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 10401555502421 in words is "ten trillion, four hundred one billion, five hundred fifty-five million, five hundred two thousand, four hundred twenty-one".