53660111423421 has 32 divisors (see below), whose sum is σ = 73175449185792. Its totient is φ = 34966497908160.

The previous prime is 53660111423383. The next prime is 53660111423423. The reversal of 53660111423421 is 12432411106635.

It is not a de Polignac number, because 53660111423421 - 2²⁵ = 53660077868989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53660111423421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53660111423423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235027906 + ... + 235256108.

It is an arithmetic number, because the mean of its divisors is an integer number (2286732787056).

Almost surely, 2^{53660111423421} is an apocalyptic number.

It is an amenable number.

53660111423421 is a deficient number, since it is larger than the sum of its proper divisors (19515337762371).

53660111423421 is a wasteful number, since it uses less digits than its factorization.

53660111423421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236313.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 53660111423421 in words is "fifty-three trillion, six hundred sixty billion, one hundred eleven million, four hundred twenty-three thousand, four hundred twenty-one".