1662513915139 has 24 divisors (see below), whose sum is σ = 2123917470000. Its totient is φ = 1286770927680.

The previous prime is 1662513915119. The next prime is 1662513915143. The reversal of 1662513915139 is 9315193152661.

It is a happy number.

It is not a de Polignac number, because 1662513915139 - 2¹³ = 1662513906947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1662513915119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10270164 + ... + 10430785.

It is an arithmetic number, because the mean of its divisors is an integer number (88496561250).

Almost surely, 2^{1662513915139} is an apocalyptic number.

1662513915139 is a deficient number, since it is larger than the sum of its proper divisors (461403554861).

1662513915139 is a wasteful number, since it uses less digits than its factorization.

1662513915139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20701123 (or 20701116 counting only the distinct ones).

The product of its digits is 1312200, while the sum is 52.

The spelling of 1662513915139 in words is "one trillion, six hundred sixty-two billion, five hundred thirteen million, nine hundred fifteen thousand, one hundred thirty-nine".