1642051560 has 64 divisors (see below), whose sum is σ = 4938007680. Its totient is φ = 436826880.

The previous prime is 1642051553. The next prime is 1642051571. The reversal of 1642051560 is 651502461.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 34269 + ... + 66771.

It is an arithmetic number, because the mean of its divisors is an integer number (77156370).

Almost surely, 2^1642051560 is an apocalyptic number.

1642051560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1642051560 is an abundant number, since it is smaller than the sum of its proper divisors (3295956120).

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

1642051560 is a wasteful number, since it uses less digits than its factorization.

1642051560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32938 (or 32934 counting only the distinct ones).

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

The square root of 1642051560 is about 40522.2353776294. The cubic root of 1642051560 is about 1179.7652410508.

The spelling of 1642051560 in words is "one billion, six hundred forty-two million, fifty-one thousand, five hundred sixty".