10021431028655 has 32 divisors (see below), whose sum is σ = 12526401824640. Its totient is φ = 7687207180800.

The previous prime is 10021431028643. The next prime is 10021431028699. The reversal of 10021431028655 is 55682013412001.

It is not a de Polignac number, because 10021431028655 - 2¹⁰ = 10021431027631 is a prime.

It is a super-2 number, since 2×10021431028655² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77816177 + ... + 77944853.

It is an arithmetic number, because the mean of its divisors is an integer number (391450057020).

Almost surely, 2^{10021431028655} is an apocalyptic number.

10021431028655 is a deficient number, since it is larger than the sum of its proper divisors (2504970795985).

10021431028655 is a wasteful number, since it uses less digits than its factorization.

10021431028655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132419.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 10021431028655 in words is "ten trillion, twenty-one billion, four hundred thirty-one million, twenty-eight thousand, six hundred fifty-five".