157740366205 has 8 divisors (see below), whose sum is σ = 193905230904. Its totient is φ = 123114432000.

The previous prime is 157740366191. The next prime is 157740366247. The reversal of 157740366205 is 502663047751.

It can be written as a sum of positive squares in 4 ways, for example, as 966339396 + 156774026809 = 31086^2 + 395947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157740366205 - 2¹⁵ = 157740333437 is a prime.

It is a super-2 number, since 2×157740366205² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384732396 + ... + 384732805.

It is an arithmetic number, because the mean of its divisors is an integer number (24238153863).

Almost surely, 2^157740366205 is an apocalyptic number.

It is an amenable number.

157740366205 is a deficient number, since it is larger than the sum of its proper divisors (36164864699).

157740366205 is an equidigital number, since it uses as much as digits as its factorization.

157740366205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769465247.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 157740366205 in words is "one hundred fifty-seven billion, seven hundred forty million, three hundred sixty-six thousand, two hundred five".