264020399967 has 16 divisors (see below), whose sum is σ = 364299742080. Its totient is φ = 169881784800.

The previous prime is 264020399959. The next prime is 264020399987. The reversal of 264020399967 is 769993020462.

It is a happy number.

It is not a de Polignac number, because 264020399967 - 2³ = 264020399959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264020399917) 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, 318009 + ... + 793202.

It is an arithmetic number, because the mean of its divisors is an integer number (22768733880).

Almost surely, 2^264020399967 is an apocalyptic number.

264020399967 is a deficient number, since it is larger than the sum of its proper divisors (100279342113).

264020399967 is a wasteful number, since it uses less digits than its factorization.

264020399967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113974.

The product of its (nonzero) digits is 8817984, while the sum is 57.

The spelling of 264020399967 in words is "two hundred sixty-four billion, twenty million, three hundred ninety-nine thousand, nine hundred sixty-seven".