1654864992 has 168 divisors, whose sum is σ = 5329686600. Its totient is φ = 501396480.

The previous prime is 1654864987. The next prime is 1654865063. The reversal of 1654864992 is 2994684561.

1654864992 is a `hidden beast` number, since 1 + 6 + 548 + 6 + 4 + 9 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 27 ways as a sum of consecutive naturals, for example, 253384 + ... + 259832.

It is an arithmetic number, because the mean of its divisors is an integer number (31724325).

Almost surely, 2^1654864992 is an apocalyptic number.

1654864992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1654864992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2664843300).

1654864992 is an abundant number, since it is smaller than the sum of its proper divisors (3674821608).

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

1654864992 is an equidigital number, since it uses as much as digits as its factorization.

1654864992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488 (or 6465 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 1654864992 is about 40680.0318583946. The cubic root of 1654864992 is about 1182.8259835162.

The spelling of 1654864992 in words is "one billion, six hundred fifty-four million, eight hundred sixty-four thousand, nine hundred ninety-two".