264401242202645 has 16 divisors (see below), whose sum is σ = 317419422261120. Its totient is φ = 211429044195264.

The previous prime is 264401242202597. The next prime is 264401242202659. The reversal of 264401242202645 is 546202242104462.

It is a cyclic number.

It is not a de Polignac number, because 264401242202645 - 2⁸ = 264401242202389 is a prime.

It is a super-2 number, since 2×264401242202645² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 264401242202596 and 264401242202605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467579072 + ... + 468144198.

It is an arithmetic number, because the mean of its divisors is an integer number (19838713891320).

Almost surely, 2^{264401242202645} is an apocalyptic number.

It is an amenable number.

264401242202645 is a deficient number, since it is larger than the sum of its proper divisors (53018180058475).

264401242202645 is a wasteful number, since it uses less digits than its factorization.

264401242202645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605644.

The product of its (nonzero) digits is 1474560, while the sum is 44.

The spelling of 264401242202645 in words is "two hundred sixty-four trillion, four hundred one billion, two hundred forty-two million, two hundred two thousand, six hundred forty-five".