64949166554 has 16 divisors (see below), whose sum is σ = 97664624640. Its totient is φ = 32394357360.

The previous prime is 64949166487. The next prime is 64949166559. The reversal of 64949166554 is 45566194946.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64949166493 and 64949166502.

It is not an unprimeable number, because it can be changed into a prime (64949166559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133887 + ... + 2164109.

It is an arithmetic number, because the mean of its divisors is an integer number (6104039040).

Almost surely, 2^64949166554 is an apocalyptic number.

64949166554 is a deficient number, since it is larger than the sum of its proper divisors (32715458086).

64949166554 is a wasteful number, since it uses less digits than its factorization.

64949166554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32845.

The product of its digits is 27993600, while the sum is 59.

The spelling of 64949166554 in words is "sixty-four billion, nine hundred forty-nine million, one hundred sixty-six thousand, five hundred fifty-four".