1516661662 has 32 divisors (see below), whose sum is σ = 2485929600. Its totient is φ = 691231968.

The previous prime is 1516661623. The next prime is 1516661669. The reversal of 1516661662 is 2661666151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516661669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336073 + ... + 340555.

It is an arithmetic number, because the mean of its divisors is an integer number (77685300).

Almost surely, 2^1516661662 is an apocalyptic number.

1516661662 is a deficient number, since it is larger than the sum of its proper divisors (969267938).

1516661662 is a wasteful number, since it uses less digits than its factorization.

1516661662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4840.

The product of its digits is 77760, while the sum is 40.

The square root of 1516661662 is about 38944.3405644517. The cubic root of 1516661662 is about 1148.9370548734.

The spelling of 1516661662 in words is "one billion, five hundred sixteen million, six hundred sixty-one thousand, six hundred sixty-two".