157663316233551 has 8 divisors (see below), whose sum is σ = 217466643080880. Its totient is φ = 101484433437632.

The previous prime is 157663316233547. The next prime is 157663316233639. The reversal of 157663316233551 is 155332613366751.

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 157663316233551 - 2² = 157663316233547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157663316233491 and 157663316233500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157663316233751) 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, 906111012750 + ... + 906111012923.

It is an arithmetic number, because the mean of its divisors is an integer number (27183330385110).

Almost surely, 2^{157663316233551} is an apocalyptic number.

157663316233551 is a deficient number, since it is larger than the sum of its proper divisors (59803326847329).

157663316233551 is a wasteful number, since it uses less digits than its factorization.

157663316233551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812222025705.

The product of its digits is 30618000, while the sum is 57.

The spelling of 157663316233551 in words is "one hundred fifty-seven trillion, six hundred sixty-three billion, three hundred sixteen million, two hundred thirty-three thousand, five hundred fifty-one".