261562252023 has 24 divisors (see below), whose sum is σ = 397792087680. Its totient is φ = 165157710480.

The previous prime is 261562252013. The next prime is 261562252037. The reversal of 261562252023 is 320252265162.

261562252023 is a `hidden beast` number, since 2 + 6 + 1 + 5 + 622 + 5 + 2 + 0 + 23 = 666.

It is not a de Polignac number, because 261562252023 - 2²⁶ = 261495143159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261562252013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542740 + ... + 904262.

It is an arithmetic number, because the mean of its divisors is an integer number (16574670320).

Almost surely, 2^261562252023 is an apocalyptic number.

261562252023 is a deficient number, since it is larger than the sum of its proper divisors (136229835657).

261562252023 is a wasteful number, since it uses less digits than its factorization.

261562252023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365779 (or 365776 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 261562252023 in words is "two hundred sixty-one billion, five hundred sixty-two million, two hundred fifty-two thousand, twenty-three".