155490960 has 160 divisors (see below), whose sum is σ = 499968000. Its totient is φ = 39955968.

The previous prime is 155490917. The next prime is 155490961. The reversal of 155490960 is 69094551.

It is not an unprimeable number, because it can be changed into a prime (155490961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1118571 + ... + 1118709.

It is an arithmetic number, because the mean of its divisors is an integer number (3124800).

Almost surely, 2^155490960 is an apocalyptic number.

155490960 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 155490960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249984000).

155490960 is an abundant number, since it is smaller than the sum of its proper divisors (344477040).

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

155490960 is a wasteful number, since it uses less digits than its factorization.

155490960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 155490960 is about 12469.6014370949. The cubic root of 155490960 is about 537.7350952826.

The spelling of 155490960 in words is "one hundred fifty-five million, four hundred ninety thousand, nine hundred sixty".