4156020464 has 20 divisors (see below), whose sum is σ = 8525954304. Its totient is φ = 1955774208.

The previous prime is 4156020433. The next prime is 4156020467. The reversal of 4156020464 is 4640206514.

It is a self number, because there is not a number n which added to its sum of digits gives 4156020464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4156020467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7639472 + ... + 7640015.

Almost surely, 2^4156020464 is an apocalyptic number.

It is an amenable number.

4156020464 is an abundant number, since it is smaller than the sum of its proper divisors (4369933840).

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

4156020464 is a wasteful number, since it uses less digits than its factorization.

4156020464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15279512 (or 15279506 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 4156020464 is about 64467.2045616994. The cubic root of 4156020464 is about 1607.7772993400. Note that the first 3 decimals are identical.

Adding to 4156020464 its reverse (4640206514), we get a palindrome (8796226978).

The spelling of 4156020464 in words is "four billion, one hundred fifty-six million, twenty thousand, four hundred sixty-four".