1662432516255 has 64 divisors (see below), whose sum is σ = 3219075883008. Its totient is φ = 715179970560.

The previous prime is 1662432516233. The next prime is 1662432516271. The reversal of 1662432516255 is 5526152342661.

It is not a de Polignac number, because 1662432516255 - 2⁷ = 1662432516127 is a prime.

It is a super-2 number, since 2×1662432516255² (a number of 25 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 63 ways as a sum of consecutive naturals, for example, 16301554 + ... + 16403216.

It is an arithmetic number, because the mean of its divisors is an integer number (50298060672).

Almost surely, 2^{1662432516255} is an apocalyptic number.

1662432516255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1662432516255 is a deficient number, since it is larger than the sum of its proper divisors (1556643366753).

1662432516255 is a wasteful number, since it uses less digits than its factorization.

1662432516255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110856.

The product of its digits is 2592000, while the sum is 48.

The spelling of 1662432516255 in words is "one trillion, six hundred sixty-two billion, four hundred thirty-two million, five hundred sixteen thousand, two hundred fifty-five".