155045113162420 has 192 divisors, whose sum is σ = 371728233676800. Its totient is φ = 53812948377600.

The previous prime is 155045113162399. The next prime is 155045113162451. The reversal of 155045113162420 is 24261311540551.

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, 16942964845 + ... + 16942973995.

It is an arithmetic number, because the mean of its divisors is an integer number (1936084550400).

Almost surely, 2^{155045113162420} is an apocalyptic number.

155045113162420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155045113162420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185864116838400).

155045113162420 is an abundant number, since it is smaller than the sum of its proper divisors (216683120514380).

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

155045113162420 is a wasteful number, since it uses less digits than its factorization.

155045113162420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13538 (or 13536 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 155045113162420 in words is "one hundred fifty-five trillion, forty-five billion, one hundred thirteen million, one hundred sixty-two thousand, four hundred twenty".