64211325651 has 24 divisors (see below), whose sum is σ = 107133337584. Its totient is φ = 36626780160.

The previous prime is 64211325623. The next prime is 64211325667. The reversal of 64211325651 is 15652311246.

64211325651 is a `hidden beast` number, since 6 + 421 + 132 + 56 + 51 = 666.

It is not a de Polignac number, because 64211325651 - 2⁶ = 64211325587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64211325611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19074766 + ... + 19078131.

It is an arithmetic number, because the mean of its divisors is an integer number (4463889066).

Almost surely, 2^64211325651 is an apocalyptic number.

64211325651 is a deficient number, since it is larger than the sum of its proper divisors (42922011933).

64211325651 is a wasteful number, since it uses less digits than its factorization.

64211325651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38152931 (or 38152928 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 64211325651 its reverse (15652311246), we get a palindrome (79863636897).

The spelling of 64211325651 in words is "sixty-four billion, two hundred eleven million, three hundred twenty-five thousand, six hundred fifty-one".