1651515151552 has 84 divisors (see below), whose sum is σ = 3839710090440. Its totient is φ = 702699992064.

The previous prime is 1651515151549. The next prime is 1651515151589. The reversal of 1651515151552 is 2551515151561.

It is a junction number, because it is equal to n+sod(n) for n = 1651515151499 and 1651515151508.

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, 1458453 + ... + 2330260.

It is an arithmetic number, because the mean of its divisors is an integer number (45710834410).

Almost surely, 2^{1651515151552} is an apocalyptic number.

It is an amenable number.

1651515151552 is an abundant number, since it is smaller than the sum of its proper divisors (2188194938888).

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

1651515151552 is a wasteful number, since it uses less digits than its factorization.

1651515151552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788878 (or 3788861 counting only the distinct ones).

The product of its digits is 187500, while the sum is 43.

Subtracting 1651515151552 from its reverse (2551515151561), we obtain a palindrome (900000000009).

The spelling of 1651515151552 in words is "one trillion, six hundred fifty-one billion, five hundred fifteen million, one hundred fifty-one thousand, five hundred fifty-two".