2564994463106 has 4 divisors (see below), whose sum is σ = 3847491694662. Its totient is φ = 1282497231552.

The previous prime is 2564994463079. The next prime is 2564994463111. The reversal of 2564994463106 is 6013644994652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2524892398081 + 40102065025 = 1588991^2 + 200255^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641248615775 + ... + 641248615778.

Almost surely, 2^{2564994463106} is an apocalyptic number.

2564994463106 is a deficient number, since it is larger than the sum of its proper divisors (1282497231556).

2564994463106 is a wasteful number, since it uses less digits than its factorization.

2564994463106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282497231555.

The product of its (nonzero) digits is 33592320, while the sum is 59.

The spelling of 2564994463106 in words is "two trillion, five hundred sixty-four billion, nine hundred ninety-four million, four hundred sixty-three thousand, one hundred six".