155122061660 has 12 divisors (see below), whose sum is σ = 325756329528. Its totient is φ = 62048824656.

The previous prime is 155122061651. The next prime is 155122061723. The reversal of 155122061660 is 66160221551.

It is a self number, because there is not a number n which added to its sum of digits gives 155122061660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3878051522 + ... + 3878051561.

It is an arithmetic number, because the mean of its divisors is an integer number (27146360794).

Almost surely, 2^155122061660 is an apocalyptic number.

155122061660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155122061660 is an abundant number, since it is smaller than the sum of its proper divisors (170634267868).

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

155122061660 is a wasteful number, since it uses less digits than its factorization.

155122061660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7756103092 (or 7756103090 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 155122061660 in words is "one hundred fifty-five billion, one hundred twenty-two million, sixty-one thousand, six hundred sixty".