1655149988 has 12 divisors (see below), whose sum is σ = 3066895692. Its totient is φ = 778894080.

The previous prime is 1655149987. The next prime is 1655150017. The reversal of 1655149988 is 8899415561.

It can be written as a sum of positive squares in 2 ways, for example, as 805310884 + 849839104 = 28378^2 + 29152^2 .

It is not an unprimeable number, because it can be changed into a prime (1655149987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12170153 + ... + 12170288.

It is an arithmetic number, because the mean of its divisors is an integer number (255574641).

Almost surely, 2^1655149988 is an apocalyptic number.

It is an amenable number.

1655149988 is a deficient number, since it is larger than the sum of its proper divisors (1411745704).

1655149988 is a wasteful number, since it uses less digits than its factorization.

1655149988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24340462 (or 24340460 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 56.

The square root of 1655149988 is about 40683.5346055379. The cubic root of 1655149988 is about 1182.8938805604.

The spelling of 1655149988 in words is "one billion, six hundred fifty-five million, one hundred forty-nine thousand, nine hundred eighty-eight".