142551664405 has 4 divisors (see below), whose sum is σ = 171061997292. Its totient is φ = 114041331520.

The previous prime is 142551664399. The next prime is 142551664433. The reversal of 142551664405 is 504466155241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38770397604 + 103781266801 = 196902^2 + 322151^2 .

It is not a de Polignac number, because 142551664405 - 2²¹ = 142549567253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14255166436 + ... + 14255166445.

It is an arithmetic number, because the mean of its divisors is an integer number (42765499323).

Almost surely, 2^142551664405 is an apocalyptic number.

It is an amenable number.

142551664405 is a deficient number, since it is larger than the sum of its proper divisors (28510332887).

142551664405 is an equidigital number, since it uses as much as digits as its factorization.

142551664405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28510332886.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 142551664405 in words is "one hundred forty-two billion, five hundred fifty-one million, six hundred sixty-four thousand, four hundred five".