31660144253 has 8 divisors (see below), whose sum is σ = 33063847488. Its totient is φ = 30258705664.

The previous prime is 31660144231. The next prime is 31660144291. The reversal of 31660144253 is 35244106613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31660144253 - 2¹⁸ = 31659882109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31660144553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537551 + ... + 593532.

It is an arithmetic number, because the mean of its divisors is an integer number (4132980936).

Almost surely, 2^31660144253 is an apocalyptic number.

It is an amenable number.

31660144253 is a deficient number, since it is larger than the sum of its proper divisors (1403703235).

31660144253 is a wasteful number, since it uses less digits than its factorization.

31660144253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132323.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 31660144253 in words is "thirty-one billion, six hundred sixty million, one hundred forty-four thousand, two hundred fifty-three".