649151888106 has 8 divisors (see below), whose sum is σ = 1298303776224. Its totient is φ = 216383962700.

The previous prime is 649151888057. The next prime is 649151888107. The reversal of 649151888106 is 601888151946.

It is a sphenic number, since it is the product of 3 distinct primes.

649151888106 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (649151888107) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54095990670 + ... + 54095990681.

It is an arithmetic number, because the mean of its divisors is an integer number (162287972028).

Almost surely, 2^649151888106 is an apocalyptic number.

649151888106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649151888106 is a wasteful number, since it uses less digits than its factorization.

649151888106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108191981356.

The product of its (nonzero) digits is 3317760, while the sum is 57.

The spelling of 649151888106 in words is "six hundred forty-nine billion, one hundred fifty-one million, eight hundred eighty-eight thousand, one hundred six".