1551056061516 has 48 divisors (see below), whose sum is σ = 3933282645600. Its totient is φ = 472869591552.

The previous prime is 1551056061509. The next prime is 1551056061521. The reversal of 1551056061516 is 6151606501551.

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, 45591561 + ... + 45625568.

It is an arithmetic number, because the mean of its divisors is an integer number (81943388450).

Almost surely, 2^{1551056061516} is an apocalyptic number.

It is an amenable number.

1551056061516 is an abundant number, since it is smaller than the sum of its proper divisors (2382226584084).

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

1551056061516 is a wasteful number, since it uses less digits than its factorization.

1551056061516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91217258 (or 91217256 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 1551056061516 in words is "one trillion, five hundred fifty-one billion, fifty-six million, sixty-one thousand, five hundred sixteen".