1662542316 has 72 divisors (see below), whose sum is σ = 4245696000. Its totient is φ = 548523360.

The previous prime is 1662542309. The next prime is 1662542347. The reversal of 1662542316 is 6132452661.

1662542316 is a `hidden beast` number, since 1 + 6 + 625 + 4 + 23 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1711711 + ... + 1712681.

It is an arithmetic number, because the mean of its divisors is an integer number (58968000).

Almost surely, 2^1662542316 is an apocalyptic number.

It is an amenable number.

1662542316 is an abundant number, since it is smaller than the sum of its proper divisors (2583153684).

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

1662542316 is a wasteful number, since it uses less digits than its factorization.

1662542316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1414 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 1662542316 is about 40774.2849845341. The cubic root of 1662542316 is about 1184.6523019849.

Adding to 1662542316 its reverse (6132452661), we get a palindrome (7794994977).

The spelling of 1662542316 in words is "one billion, six hundred sixty-two million, five hundred forty-two thousand, three hundred sixteen".