65490549418 has 16 divisors (see below), whose sum is σ = 118178435520. Its totient is φ = 26590147776.

The previous prime is 65490549409. The next prime is 65490549433. The reversal of 65490549418 is 81494509456.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123102271 + ... + 123102802.

It is an arithmetic number, because the mean of its divisors is an integer number (7386152220).

Almost surely, 2^65490549418 is an apocalyptic number.

65490549418 is a deficient number, since it is larger than the sum of its proper divisors (52687886102).

65490549418 is a wasteful number, since it uses less digits than its factorization.

65490549418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246205101.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 65490549418 in words is "sixty-five billion, four hundred ninety million, five hundred forty-nine thousand, four hundred eighteen".