2251215165054 has 24 divisors (see below), whose sum is σ = 4652355181320. Its totient is φ = 726198438480.

The previous prime is 2251215165049. The next prime is 2251215165071. The reversal of 2251215165054 is 4505615121522.

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 in 11 ways as a sum of consecutive naturals, for example, 195208869 + ... + 195220400.

It is an arithmetic number, because the mean of its divisors is an integer number (193848132555).

Almost surely, 2^{2251215165054} is an apocalyptic number.

2251215165054 is an abundant number, since it is smaller than the sum of its proper divisors (2401140016266).

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

2251215165054 is a wasteful number, since it uses less digits than its factorization.

2251215165054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390429336 (or 390429305 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

The spelling of 2251215165054 in words is "two trillion, two hundred fifty-one billion, two hundred fifteen million, one hundred sixty-five thousand, fifty-four".