23157020537653 has 4 divisors (see below), whose sum is σ = 23157038086560. Its totient is φ = 23157002988748.

The previous prime is 23157020537549. The next prime is 23157020537699. The reversal of 23157020537653 is 35673502075132.

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 a de Polignac number, because none of the positive numbers 2^k-23157020537653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23157020537597 and 23157020537606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23157020537753) 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, 6618523 + ... + 9493096.

It is an arithmetic number, because the mean of its divisors is an integer number (5789259521640).

Almost surely, 2^{23157020537653} is an apocalyptic number.

It is an amenable number.

23157020537653 is a deficient number, since it is larger than the sum of its proper divisors (17548907).

23157020537653 is a wasteful number, since it uses less digits than its factorization.

23157020537653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17548906.

The product of its (nonzero) digits is 3969000, while the sum is 49.

The spelling of 23157020537653 in words is "twenty-three trillion, one hundred fifty-seven billion, twenty million, five hundred thirty-seven thousand, six hundred fifty-three".