1662101056 has 56 divisors (see below), whose sum is σ = 4112093376. Its totient is φ = 647569920.

The previous prime is 1662101039. The next prime is 1662101069. The reversal of 1662101056 is 6501012661.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163711 + ... + 173566.

Almost surely, 2^1662101056 is an apocalyptic number.

1662101056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1662101056 is an abundant number, since it is smaller than the sum of its proper divisors (2449992320).

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

1662101056 is a wasteful number, since it uses less digits than its factorization.

1662101056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337307 (or 337297 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1662101056 is about 40768.8736170133. The cubic root of 1662101056 is about 1184.5474854190.

The spelling of 1662101056 in words is "one billion, six hundred sixty-two million, one hundred one thousand, fifty-six".