1513016066440 has 32 divisors (see below), whose sum is σ = 3496293886680. Its totient is φ = 588849495552.

The previous prime is 1513016066381. The next prime is 1513016066459. The reversal of 1513016066440 is 446606103151.

It can be written as a sum of positive squares in 4 ways, for example, as 1393754969476 + 119261096964 = 1180574^2 + 345342^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 1513016066440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511152597 + ... + 511155556.

Almost surely, 2^{1513016066440} is an apocalyptic number.

1513016066440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1513016066440 is an abundant number, since it is smaller than the sum of its proper divisors (1983277820240).

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

1513016066440 is a wasteful number, since it uses less digits than its factorization.

1513016066440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022308201 (or 1022308197 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 1513016066440 in words is "one trillion, five hundred thirteen billion, sixteen million, sixty-six thousand, four hundred forty".