5654161920 has 640 divisors, whose sum is σ = 21722038272. Its totient is φ = 1238630400.

The previous prime is 5654161897. The next prime is 5654161943. The reversal of 5654161920 is 291614565.

It is an interprime number because it is at equal distance from previous prime (5654161897) and next prime (5654161943).

It is a tau number, because it is divible by the number of its divisors (640).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44520897 + ... + 44521023.

Almost surely, 2^5654161920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5654161920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10861019136).

5654161920 is an abundant number, since it is smaller than the sum of its proper divisors (16067876352).

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

5654161920 is a wasteful number, since it uses less digits than its factorization.

5654161920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 5654161920 is about 75194.1614754763. The cubic root of 5654161920 is about 1781.5147145396.

The spelling of 5654161920 in words is "five billion, six hundred fifty-four million, one hundred sixty-one thousand, nine hundred twenty".