155340656 has 20 divisors (see below), whose sum is σ = 316813800. Its totient is φ = 73582272.

The previous prime is 155340649. The next prime is 155340671. The reversal of 155340656 is 656043551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255191 + ... + 255798.

It is an arithmetic number, because the mean of its divisors is an integer number (15840690).

Almost surely, 2^155340656 is an apocalyptic number.

155340656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155340656 is an abundant number, since it is smaller than the sum of its proper divisors (161473144).

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

155340656 is a wasteful number, since it uses less digits than its factorization.

155340656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511016 (or 511010 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 155340656 is about 12463.5731634231. The cubic root of 155340656 is about 537.5617737547.

The spelling of 155340656 in words is "one hundred fifty-five million, three hundred forty thousand, six hundred fifty-six".