1646256241066 has 16 divisors (see below), whose sum is σ = 2529090511200. Its totient is φ = 803260595088.

The previous prime is 1646256241057. The next prime is 1646256241073. The reversal of 1646256241066 is 6601426526461.

It is a super-2 number, since 2×1646256241066² (a number of 25 digits) contains 22 as substring.

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, 8535156 + ... + 8725903.

It is an arithmetic number, because the mean of its divisors is an integer number (158068156950).

Almost surely, 2^{1646256241066} is an apocalyptic number.

1646256241066 is a deficient number, since it is larger than the sum of its proper divisors (882834270134).

1646256241066 is a wasteful number, since it uses less digits than its factorization.

1646256241066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17262213.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 1646256241066 in words is "one trillion, six hundred forty-six billion, two hundred fifty-six million, two hundred forty-one thousand, sixty-six".