157740566704551 has 24 divisors (see below), whose sum is σ = 228600334378416. Its totient is φ = 104813425664640.

The previous prime is 157740566704531. The next prime is 157740566704601. The reversal of 157740566704551 is 155407665047751.

157740566704551 is a `hidden beast` number, since 1 + 5 + 7 + 7 + 4 + 0 + 5 + 6 + 6 + 70 + 4 + 551 = 666.

It is not a de Polignac number, because 157740566704551 - 2¹³ = 157740566696359 is a prime.

It is a super-2 number, since 2×157740566704551² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157740566704531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17864710 + ... + 25191843.

It is an arithmetic number, because the mean of its divisors is an integer number (9525013932434).

Almost surely, 2^{157740566704551} is an apocalyptic number.

157740566704551 is a deficient number, since it is larger than the sum of its proper divisors (70859767673865).

157740566704551 is a wasteful number, since it uses less digits than its factorization.

157740566704551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43057903 (or 43057900 counting only the distinct ones).

The product of its (nonzero) digits is 123480000, while the sum is 63.

The spelling of 157740566704551 in words is "one hundred fifty-seven trillion, seven hundred forty billion, five hundred sixty-six million, seven hundred four thousand, five hundred fifty-one".