155615456 has 12 divisors (see below), whose sum is σ = 306367992. Its totient is φ = 77807712.

The previous prime is 155615419. The next prime is 155615477. The reversal of 155615456 is 654516551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2431460 + ... + 2431523.

It is an arithmetic number, because the mean of its divisors is an integer number (25530666).

Almost surely, 2^155615456 is an apocalyptic number.

155615456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155615456 is a deficient number, since it is larger than the sum of its proper divisors (150752536).

155615456 is an equidigital number, since it uses as much as digits as its factorization.

155615456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862993 (or 4862985 counting only the distinct ones).

The product of its digits is 90000, while the sum is 38.

The square root of 155615456 is about 12474.5924181915. The cubic root of 155615456 is about 537.8785720252.

The spelling of 155615456 in words is "one hundred fifty-five million, six hundred fifteen thousand, four hundred fifty-six".