253464167661 has 16 divisors (see below), whose sum is σ = 345829845504. Its totient is φ = 165037716144.

The previous prime is 253464167639. The next prime is 253464167681. The reversal of 253464167661 is 166761464352.

It is not a de Polignac number, because 253464167661 - 2⁶ = 253464167597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253464167611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3173560 + ... + 3252446.

It is an arithmetic number, because the mean of its divisors is an integer number (21614365344).

Almost surely, 2^253464167661 is an apocalyptic number.

It is an amenable number.

253464167661 is a deficient number, since it is larger than the sum of its proper divisors (92365677843).

253464167661 is a wasteful number, since it uses less digits than its factorization.

253464167661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103840.

The product of its digits is 4354560, while the sum is 51.

The spelling of 253464167661 in words is "two hundred fifty-three billion, four hundred sixty-four million, one hundred sixty-seven thousand, six hundred sixty-one".