155060720 has 40 divisors (see below), whose sum is σ = 361082544. Its totient is φ = 61926912.

The previous prime is 155060707. The next prime is 155060743. The reversal of 155060720 is 27060551.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 155060720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71492 + ... + 73628.

Almost surely, 2^155060720 is an apocalyptic number.

155060720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155060720 is an abundant number, since it is smaller than the sum of its proper divisors (206021824).

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

155060720 is a wasteful number, since it uses less digits than its factorization.

155060720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057 (or 3051 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 155060720 is about 12452.3379330951. The cubic root of 155060720 is about 537.2386701510.

The spelling of 155060720 in words is "one hundred fifty-five million, sixty thousand, seven hundred twenty".