1251060603155 has 32 divisors (see below), whose sum is σ = 1642888735488. Its totient is φ = 907013001600.

The previous prime is 1251060603137. The next prime is 1251060603161. The reversal of 1251060603155 is 5513060601521.

It is a de Polignac number, because none of the positive numbers 2^k-1251060603155 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22992692 + ... + 23047038.

It is an arithmetic number, because the mean of its divisors is an integer number (51340272984).

Almost surely, 2^{1251060603155} is an apocalyptic number.

1251060603155 is a deficient number, since it is larger than the sum of its proper divisors (391828132333).

1251060603155 is a wasteful number, since it uses less digits than its factorization.

1251060603155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55667.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 1251060603155 in words is "one trillion, two hundred fifty-one billion, sixty million, six hundred three thousand, one hundred fifty-five".