1061506664464 has 20 divisors (see below), whose sum is σ = 2056786888960. Its totient is φ = 530722951200.

The previous prime is 1061506664453. The next prime is 1061506664473. The reversal of 1061506664464 is 4644666051601.

It is a super-2 number, since 2×1061506664464² (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 3 ways as a sum of consecutive naturals, for example, 1609224 + ... + 2170855.

It is an arithmetic number, because the mean of its divisors is an integer number (102839344448).

Almost surely, 2^{1061506664464} is an apocalyptic number.

It is an amenable number.

1061506664464 is a deficient number, since it is larger than the sum of its proper divisors (995280224496).

1061506664464 is a wasteful number, since it uses less digits than its factorization.

1061506664464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797638 (or 3797632 counting only the distinct ones).

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

The spelling of 1061506664464 in words is "one trillion, sixty-one billion, five hundred six million, six hundred sixty-four thousand, four hundred sixty-four".