257162065541215 has 8 divisors (see below), whose sum is σ = 308693737104480. Its totient is φ = 205663480129632.

The previous prime is 257162065541141. The next prime is 257162065541267. The reversal of 257162065541215 is 512145560261752.

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 257162065541215 - 2¹⁷ = 257162065410143 is a prime.

It is a super-2 number, since 2×257162065541215² (a number of 30 digits) contains 22 as substring.

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, 8271520819 + ... + 8271551908.

It is an arithmetic number, because the mean of its divisors is an integer number (38586717138060).

Almost surely, 2^{257162065541215} is an apocalyptic number.

257162065541215 is a deficient number, since it is larger than the sum of its proper divisors (51531671563265).

257162065541215 is a wasteful number, since it uses less digits than its factorization.

257162065541215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16543075841.

The product of its (nonzero) digits is 5040000, while the sum is 52.

The spelling of 257162065541215 in words is "two hundred fifty-seven trillion, one hundred sixty-two billion, sixty-five million, five hundred forty-one thousand, two hundred fifteen".