2158652412 has 72 divisors (see below), whose sum is σ = 6245811936. Its totient is φ = 615798144.

The previous prime is 2158652407. The next prime is 2158652429. The reversal of 2158652412 is 2142568512.

2158652412 is a `hidden beast` number, since 21 + 586 + 52 + 4 + 1 + 2 = 666.

2158652412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164278 + ... + 176930.

It is an arithmetic number, because the mean of its divisors is an integer number (86747388).

Almost surely, 2^2158652412 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 2158652412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3122905968).

2158652412 is an abundant number, since it is smaller than the sum of its proper divisors (4087159524).

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

2158652412 is a wasteful number, since it uses less digits than its factorization.

2158652412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13347 (or 13342 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 2158652412 is about 46461.3001539991. The cubic root of 2158652412 is about 1292.3919349158.

The spelling of 2158652412 in words is "two billion, one hundred fifty-eight million, six hundred fifty-two thousand, four hundred twelve".