381155165715 has 16 divisors (see below), whose sum is σ = 610145366688. Its totient is φ = 203183721216.

The previous prime is 381155165669. The next prime is 381155165761. The reversal of 381155165715 is 517561551183.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (381155165669) and next prime (381155165761).

It is not a de Polignac number, because 381155165715 - 2²⁶ = 381088056851 is a prime.

It is a super-2 number, since 2×381155165715² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6157794 + ... + 6219383.

It is an arithmetic number, because the mean of its divisors is an integer number (38134085418).

Almost surely, 2^381155165715 is an apocalyptic number.

381155165715 is a deficient number, since it is larger than the sum of its proper divisors (228990200973).

381155165715 is a wasteful number, since it uses less digits than its factorization.

381155165715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12379238.

The product of its digits is 630000, while the sum is 48.

The spelling of 381155165715 in words is "three hundred eighty-one billion, one hundred fifty-five million, one hundred sixty-five thousand, seven hundred fifteen".