254051156515 has 16 divisors (see below), whose sum is σ = 328400856000. Its totient is φ = 187556383872.

The previous prime is 254051156473. The next prime is 254051156573. The reversal of 254051156515 is 515651150452.

It is a de Polignac number, because none of the positive numbers 2^k-254051156515 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283740 + ... + 767209.

It is an arithmetic number, because the mean of its divisors is an integer number (20525053500).

Almost surely, 2^254051156515 is an apocalyptic number.

254051156515 is a deficient number, since it is larger than the sum of its proper divisors (74349699485).

254051156515 is a wasteful number, since it uses less digits than its factorization.

254051156515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054686.

The product of its (nonzero) digits is 150000, while the sum is 40.

The spelling of 254051156515 in words is "two hundred fifty-four billion, fifty-one million, one hundred fifty-six thousand, five hundred fifteen".