61231624641501 has 4 divisors (see below), whose sum is σ = 81642166188672. Its totient is φ = 40821083094332.

The previous prime is 61231624641487. The next prime is 61231624641529. The reversal of 61231624641501 is 10514642613216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61231624641501 - 2⁷ = 61231624641373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61231624642501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10205270773581 + ... + 10205270773586.

It is an arithmetic number, because the mean of its divisors is an integer number (20410541547168).

Almost surely, 2^{61231624641501} is an apocalyptic number.

It is an amenable number.

61231624641501 is a deficient number, since it is larger than the sum of its proper divisors (20410541547171).

61231624641501 is a wasteful number, since it uses less digits than its factorization.

61231624641501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20410541547170.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 61231624641501 in words is "sixty-one trillion, two hundred thirty-one billion, six hundred twenty-four million, six hundred forty-one thousand, five hundred one".