1655256464 has 10 divisors (see below), whose sum is σ = 3207059430. Its totient is φ = 827628224.

The previous prime is 1655256437. The next prime is 1655256487. The reversal of 1655256464 is 4646525561.

It can be written as a sum of positive squares in only one way, i.e., 1294560400 + 360696064 = 35980^2 + 18992^2 .

It is a super-2 number, since 2×1655256464² = 5479747923227566592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51726749 + ... + 51726780.

It is an arithmetic number, because the mean of its divisors is an integer number (320705943).

Almost surely, 2^1655256464 is an apocalyptic number.

It is an amenable number.

1655256464 is a deficient number, since it is larger than the sum of its proper divisors (1551802966).

1655256464 is a wasteful number, since it uses less digits than its factorization.

1655256464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103453537 (or 103453531 counting only the distinct ones).

The product of its digits is 864000, while the sum is 44.

The square root of 1655256464 is about 40684.8431728574. The cubic root of 1655256464 is about 1182.9192452522.

The spelling of 1655256464 in words is "one billion, six hundred fifty-five million, two hundred fifty-six thousand, four hundred sixty-four".