157326305172270 has 128 divisors (see below), whose sum is σ = 407869696660608. Its totient is φ = 38608341811200.

The previous prime is 157326305172221. The next prime is 157326305172341. The reversal of 157326305172270 is 72271503623751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 242841894 + ... + 243488886.

It is an arithmetic number, because the mean of its divisors is an integer number (3186482005161).

Almost surely, 2^{157326305172270} is an apocalyptic number.

157326305172270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 157326305172270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203934848330304).

157326305172270 is an abundant number, since it is smaller than the sum of its proper divisors (250543391488338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157326305172270 is a wasteful number, since it uses less digits than its factorization.

157326305172270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648918.

The product of its (nonzero) digits is 3704400, while the sum is 51.

The spelling of 157326305172270 in words is "one hundred fifty-seven trillion, three hundred twenty-six billion, three hundred five million, one hundred seventy-two thousand, two hundred seventy".