155646003006420 has 48 divisors (see below), whose sum is σ = 435839327504448. Its totient is φ = 41502694222080.

The previous prime is 155646003006409. The next prime is 155646003006449. The reversal of 155646003006420 is 24600300646551.

It is a super-2 number, since 2×155646003006420² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89966614 + ... + 91680333.

It is an arithmetic number, because the mean of its divisors is an integer number (9079985989676).

Almost surely, 2^{155646003006420} is an apocalyptic number.

155646003006420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155646003006420 is an abundant number, since it is smaller than the sum of its proper divisors (280193324498028).

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

155646003006420 is a wasteful number, since it uses less digits than its factorization.

155646003006420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181661240 (or 181661238 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 155646003006420 in words is "one hundred fifty-five trillion, six hundred forty-six billion, three million, six thousand, four hundred twenty".