1660151670 has 16 divisors (see below), whose sum is σ = 3984364080. Its totient is φ = 442707104.

The previous prime is 1660151659. The next prime is 1660151671. The reversal of 1660151670 is 761510661.

It is a super-2 number, since 2×1660151670² = 5512207134807577800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660151671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27669165 + ... + 27669224.

It is an arithmetic number, because the mean of its divisors is an integer number (249022755).

Almost surely, 2^1660151670 is an apocalyptic number.

1660151670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1660151670 is an abundant number, since it is smaller than the sum of its proper divisors (2324212410).

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

1660151670 is a wasteful number, since it uses less digits than its factorization.

1660151670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55338399.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1660151670 is about 40744.9588292834. The cubic root of 1660151670 is about 1184.0842076058.

The spelling of 1660151670 in words is "one billion, six hundred sixty million, one hundred fifty-one thousand, six hundred seventy".