1554490291264 has 21 divisors (see below), whose sum is σ = 3084711464677. Its totient is φ = 777240158464.

The previous prime is 1554490291243. The next prime is 1554490291351. The reversal of 1554490291264 is 4621920944551.

The square root of 1554490291264 is 1246792.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1131261977664 + 423228313600 = 1063608^2 + 650560^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9896412 + ... + 10052260.

Almost surely, 2^{1554490291264} is an apocalyptic number.

1554490291264 is the 1246792-nd square number.

It is an amenable number.

1554490291264 is a deficient number, since it is larger than the sum of its proper divisors (1530221173413).

1554490291264 is an frugal number, since it uses more digits than its factorization.

1554490291264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311710 (or 155851 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 1554490291264 in words is "one trillion, five hundred fifty-four billion, four hundred ninety million, two hundred ninety-one thousand, two hundred sixty-four".