155010720 has 48 divisors (see below), whose sum is σ = 488285280. Its totient is φ = 41336064.

The previous prime is 155010701. The next prime is 155010727. The reversal of 155010720 is 27010551.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (155010727) 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, 160990 + ... + 161949.

It is an arithmetic number, because the mean of its divisors is an integer number (10172610).

Almost surely, 2^155010720 is an apocalyptic number.

155010720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155010720 is an abundant number, since it is smaller than the sum of its proper divisors (333274560).

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

155010720 is a wasteful number, since it uses less digits than its factorization.

155010720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322957 (or 322949 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 155010720 is about 12450.3301161054. The cubic root of 155010720 is about 537.1809189653.

The spelling of 155010720 in words is "one hundred fifty-five million, ten thousand, seven hundred twenty".