464220142152256 has 28 divisors (see below), whose sum is σ = 1052784965239168. Its totient is φ = 198951489493632.

The previous prime is 464220142152241. The next prime is 464220142152257. The reversal of 464220142152256 is 652251241022464.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (464220142152257) 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, 518102836776 + ... + 518102837671.

It is an arithmetic number, because the mean of its divisors is an integer number (37599463044256).

Almost surely, 2^{464220142152256} is an apocalyptic number.

It is an amenable number.

464220142152256 is an abundant number, since it is smaller than the sum of its proper divisors (588564823086912).

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

464220142152256 is a wasteful number, since it uses less digits than its factorization.

464220142152256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036205674466 (or 1036205674456 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 464220142152256 in words is "four hundred sixty-four trillion, two hundred twenty billion, one hundred forty-two million, one hundred fifty-two thousand, two hundred fifty-six".