648016622 has 64 divisors (see below), whose sum is σ = 1180016640. Its totient is φ = 263541600.

The previous prime is 648016619. The next prime is 648016627. The reversal of 648016622 is 226610846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648016627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556613 + ... + 557775.

It is an arithmetic number, because the mean of its divisors is an integer number (18437760).

Almost surely, 2^648016622 is an apocalyptic number.

648016622 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

648016622 is a deficient number, since it is larger than the sum of its proper divisors (532000018).

648016622 is a wasteful number, since it uses less digits than its factorization.

648016622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 648016622 is about 25456.1706075364. The cubic root of 648016622 is about 865.3571412176.

The spelling of 648016622 in words is "six hundred forty-eight million, sixteen thousand, six hundred twenty-two".