220231554431451 has 32 divisors (see below), whose sum is σ = 312074832283200. Its totient is φ = 137883950346240.

The previous prime is 220231554431407. The next prime is 220231554431461. The reversal of 220231554431451 is 154134455132022.

It is not a de Polignac number, because 220231554431451 - 2⁶ = 220231554431387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220231554431461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330270 + ... + 20989811.

It is an arithmetic number, because the mean of its divisors is an integer number (9752338508850).

Almost surely, 2^{220231554431451} is an apocalyptic number.

220231554431451 is a deficient number, since it is larger than the sum of its proper divisors (91843277851749).

220231554431451 is a wasteful number, since it uses less digits than its factorization.

220231554431451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21323359.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 220231554431451 in words is "two hundred twenty trillion, two hundred thirty-one billion, five hundred fifty-four million, four hundred thirty-one thousand, four hundred fifty-one".