155403053451054 has 24 divisors (see below), whose sum is σ = 336706947534672. Its totient is φ = 51800966782560.

The previous prime is 155403053450989. The next prime is 155403053451097. The reversal of 155403053451054 is 450154350304551.

It is a happy number.

155403053451054 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 0 + 3 + 0 + 534 + 5 + 105 + 4 = 666.

It is a super-2 number, since 2×155403053451054² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17544402 + ... + 24871914.

It is an arithmetic number, because the mean of its divisors is an integer number (14029456147278).

Almost surely, 2^{155403053451054} is an apocalyptic number.

155403053451054 is an abundant number, since it is smaller than the sum of its proper divisors (181303894083618).

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

155403053451054 is a wasteful number, since it uses less digits than its factorization.

155403053451054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8505752 (or 8505749 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 155403053451054 in words is "one hundred fifty-five trillion, four hundred three billion, fifty-three million, four hundred fifty-one thousand, fifty-four".