155235403546 has 4 divisors (see below), whose sum is σ = 232853105322. Its totient is φ = 77617701772.

The previous prime is 155235403523. The next prime is 155235403601. The reversal of 155235403546 is 645304532551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 97944587521 + 57290816025 = 312961^2 + 239355^2 .

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 as a sum of consecutive naturals, namely, 38808850885 + ... + 38808850888.

Almost surely, 2^155235403546 is an apocalyptic number.

155235403546 is a deficient number, since it is larger than the sum of its proper divisors (77617701776).

155235403546 is an equidigital number, since it uses as much as digits as its factorization.

155235403546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77617701775.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 155235403546 in words is "one hundred fifty-five billion, two hundred thirty-five million, four hundred three thousand, five hundred forty-six".