513160662640 has 80 divisors (see below), whose sum is σ = 1211223476736. Its totient is φ = 202167296000.

The previous prime is 513160662631. The next prime is 513160662671. The reversal of 513160662640 is 46266061315.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×513160662640² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 513160662593 and 513160662602.

It is a congruent number.

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, 1377024 + ... + 1709536.

Almost surely, 2^513160662640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513160662640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605611738368).

513160662640 is an abundant number, since it is smaller than the sum of its proper divisors (698062814096).

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

513160662640 is a wasteful number, since it uses less digits than its factorization.

513160662640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332818 (or 332812 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 513160662640 in words is "five hundred thirteen billion, one hundred sixty million, six hundred sixty-two thousand, six hundred forty".