53445520766 has 16 divisors (see below), whose sum is σ = 87676614000. Its totient is φ = 24232222080.

The previous prime is 53445520747. The next prime is 53445520781. The reversal of 53445520766 is 66702554435.

It is a self number, because there is not a number n which added to its sum of digits gives 53445520766.

It is a congruent number.

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, 3050891 + ... + 3068358.

It is an arithmetic number, because the mean of its divisors is an integer number (5479788375).

Almost surely, 2^53445520766 is an apocalyptic number.

53445520766 is a deficient number, since it is larger than the sum of its proper divisors (34231093234).

53445520766 is a wasteful number, since it uses less digits than its factorization.

53445520766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6119659.

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 53445520766 in words is "fifty-three billion, four hundred forty-five million, five hundred twenty thousand, seven hundred sixty-six".