655155161515 has 8 divisors (see below), whose sum is σ = 790730623728. Its totient is φ = 521094509280.

The previous prime is 655155161491. The next prime is 655155161519. The reversal of 655155161515 is 515161551556.

It is a happy number.

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

It is not a de Polignac number, because 655155161515 - 2⁷ = 655155161387 is a prime.

It is a super-3 number, since 3×655155161515³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655155161519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378701541 + ... + 378703270.

It is an arithmetic number, because the mean of its divisors is an integer number (98841327966).

Almost surely, 2^655155161515 is an apocalyptic number.

655155161515 is a deficient number, since it is larger than the sum of its proper divisors (135575462213).

655155161515 is a wasteful number, since it uses less digits than its factorization.

655155161515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757404989.

The product of its digits is 562500, while the sum is 46.

The spelling of 655155161515 in words is "six hundred fifty-five billion, one hundred fifty-five million, one hundred sixty-one thousand, five hundred fifteen".