157451904669 has 32 divisors (see below), whose sum is σ = 228483788800. Its totient is φ = 96079322880.

The previous prime is 157451904661. The next prime is 157451904689. The reversal of 157451904669 is 966409154751.

It is a happy number.

It is not a de Polignac number, because 157451904669 - 2³ = 157451904661 is a prime.

It is a super-2 number, since 2×157451904669² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157451904661) 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, 1021797 + ... + 1165749.

It is an arithmetic number, because the mean of its divisors is an integer number (7140118400).

Almost surely, 2^157451904669 is an apocalyptic number.

157451904669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

157451904669 is a deficient number, since it is larger than the sum of its proper divisors (71031884131).

157451904669 is a wasteful number, since it uses less digits than its factorization.

157451904669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144625.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 157451904669 in words is "one hundred fifty-seven billion, four hundred fifty-one million, nine hundred four thousand, six hundred sixty-nine".