155665615060 has 24 divisors (see below), whose sum is σ = 341110740096. Its totient is φ = 59559017760.

The previous prime is 155665615057. The next prime is 155665615087. The reversal of 155665615060 is 60516566551.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 155665615060.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169201296 + ... + 169202215.

It is an arithmetic number, because the mean of its divisors is an integer number (14212947504).

Almost surely, 2^155665615060 is an apocalyptic number.

155665615060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155665615060 is an abundant number, since it is smaller than the sum of its proper divisors (185445125036).

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

155665615060 is a wasteful number, since it uses less digits than its factorization.

155665615060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338403543 (or 338403541 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 155665615060 in words is "one hundred fifty-five billion, six hundred sixty-five million, six hundred fifteen thousand, sixty".