154405664 has 36 divisors (see below), whose sum is σ = 353620134. Its totient is φ = 66173184.

The previous prime is 154405663. The next prime is 154405687. The reversal of 154405664 is 466504451.

It can be written as a sum of positive squares in only one way, i.e., 151093264 + 3312400 = 12292^2 + 1820^2 .

It is a super-2 number, since 2×154405664² = 47682218150561792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (154405663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47669 + ... + 50804.

Almost surely, 2^154405664 is an apocalyptic number.

154405664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

154405664 is an abundant number, since it is smaller than the sum of its proper divisors (199214470).

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

154405664 is an equidigital number, since it uses as much as digits as its factorization.

154405664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98497 (or 98482 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 154405664 is about 12426.0075647812. The cubic root of 154405664 is about 536.4810784450.

The spelling of 154405664 in words is "one hundred fifty-four million, four hundred five thousand, six hundred sixty-four".