654452056642 has 32 divisors (see below), whose sum is σ = 1017106988400. Its totient is φ = 315451895808.

The previous prime is 654452056637. The next prime is 654452056667. The reversal of 654452056642 is 246650254456.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 314946562401 + 339505494241 = 561201^2 + 582671^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148838388 + ... + 148842784.

Almost surely, 2^654452056642 is an apocalyptic number.

654452056642 is a deficient number, since it is larger than the sum of its proper divisors (362654931758).

654452056642 is a wasteful number, since it uses less digits than its factorization.

654452056642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7830.

The product of its (nonzero) digits is 6912000, while the sum is 49.

The spelling of 654452056642 in words is "six hundred fifty-four billion, four hundred fifty-two million, fifty-six thousand, six hundred forty-two".