1655791942 has 32 divisors (see below), whose sum is σ = 3136154112. Its totient is φ = 638841984.

The previous prime is 1655791939. The next prime is 1655792003. The reversal of 1655791942 is 2491975561.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 145768 + ... + 156715.

It is an arithmetic number, because the mean of its divisors is an integer number (98004816).

Almost surely, 2^1655791942 is an apocalyptic number.

1655791942 is a deficient number, since it is larger than the sum of its proper divisors (1480362170).

1655791942 is a wasteful number, since it uses less digits than its factorization.

1655791942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302532.

The product of its digits is 680400, while the sum is 49.

The square root of 1655791942 is about 40691.4234452421. The cubic root of 1655791942 is about 1183.0467902284.

The spelling of 1655791942 in words is "one billion, six hundred fifty-five million, seven hundred ninety-one thousand, nine hundred forty-two".