2167070640 has 160 divisors (see below), whose sum is σ = 7694507520. Its totient is φ = 494241792.

The previous prime is 2167070639. The next prime is 2167070651. The reversal of 2167070640 is 460707612.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 954787 + ... + 957053.

It is an arithmetic number, because the mean of its divisors is an integer number (48090672).

Almost surely, 2^2167070640 is an apocalyptic number.

2167070640 is a gapful number since it is divisible by the number (20) 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 2167070640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3847253760).

2167070640 is an abundant number, since it is smaller than the sum of its proper divisors (5527436880).

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

2167070640 is a wasteful number, since it uses less digits than its factorization.

2167070640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859 (or 2853 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 2167070640 is about 46551.8059800047. The cubic root of 2167070640 is about 1294.0697622178.

The spelling of 2167070640 in words is "two billion, one hundred sixty-seven million, seventy thousand, six hundred forty".