155550646232403 has 16 divisors (see below), whose sum is σ = 209751532941600. Its totient is φ = 102525321000960.

The previous prime is 155550646232287. The next prime is 155550646232437. The reversal of 155550646232403 is 304232646055551.

155550646232403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155550646232403 - 2²⁴ = 155550629455187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155550646232473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25467658 + ... + 30979071.

It is an arithmetic number, because the mean of its divisors is an integer number (13109470808850).

Almost surely, 2^{155550646232403} is an apocalyptic number.

155550646232403 is a deficient number, since it is larger than the sum of its proper divisors (54200886709197).

155550646232403 is a wasteful number, since it uses less digits than its factorization.

155550646232403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56457142.

The product of its (nonzero) digits is 12960000, while the sum is 51.

The spelling of 155550646232403 in words is "one hundred fifty-five trillion, five hundred fifty billion, six hundred forty-six million, two hundred thirty-two thousand, four hundred three".