5662121520 has 80 divisors (see below), whose sum is σ = 19148274432. Its totient is φ = 1372634880.

The previous prime is 5662121513. The next prime is 5662121567. The reversal of 5662121520 is 251212665.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×5662121520² = 64119240214494220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069732 + ... + 1075011.

Almost surely, 2^5662121520 is an apocalyptic number.

It is an amenable number.

5662121520 is an abundant number, since it is smaller than the sum of its proper divisors (13486152912).

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

5662121520 is a wasteful number, since it uses less digits than its factorization.

5662121520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144770 (or 2144764 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 5662121520 is about 75247.0698432836. The cubic root of 5662121520 is about 1782.3502934711.

The spelling of 5662121520 in words is "five billion, six hundred sixty-two million, one hundred twenty-one thousand, five hundred twenty".