155152362123645 has 64 divisors (see below), whose sum is σ = 265316657276160. Its totient is φ = 77150912053248.

The previous prime is 155152362123617. The next prime is 155152362123701. The reversal of 155152362123645 is 546321263251551.

It is not a de Polignac number, because 155152362123645 - 2⁶ = 155152362123581 is a prime.

It is a super-2 number, since 2×155152362123645² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11409229 + ... + 20987501.

It is an arithmetic number, because the mean of its divisors is an integer number (4145572769940).

Almost surely, 2^{155152362123645} is an apocalyptic number.

155152362123645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155152362123645 is a deficient number, since it is larger than the sum of its proper divisors (110164295152515).

155152362123645 is a wasteful number, since it uses less digits than its factorization.

155152362123645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9578894.

The product of its digits is 6480000, while the sum is 51.

The spelling of 155152362123645 in words is "one hundred fifty-five trillion, one hundred fifty-two billion, three hundred sixty-two million, one hundred twenty-three thousand, six hundred forty-five".