4156256265 has 16 divisors (see below), whose sum is σ = 7600011648. Its totient is φ = 1900002816.

The previous prime is 4156256261. The next prime is 4156256333. The reversal of 4156256265 is 5626526514.

It is a happy number.

It is not a de Polignac number, because 4156256265 - 2² = 4156256261 is a prime.

It is a super-2 number, since 2×4156256265² = 34548932280703500450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4156256261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19791592 + ... + 19791801.

It is an arithmetic number, because the mean of its divisors is an integer number (475000728).

Almost surely, 2^4156256265 is an apocalyptic number.

It is an amenable number.

4156256265 is a deficient number, since it is larger than the sum of its proper divisors (3443755383).

4156256265 is a wasteful number, since it uses less digits than its factorization.

4156256265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39583408.

The product of its digits is 432000, while the sum is 42.

The square root of 4156256265 is about 64469.0333803757. The cubic root of 4156256265 is about 1607.8077056969.

The spelling of 4156256265 in words is "four billion, one hundred fifty-six million, two hundred fifty-six thousand, two hundred sixty-five".