1653436654 has 16 divisors (see below), whose sum is σ = 2528813520. Its totient is φ = 810521920.

The previous prime is 1653436633. The next prime is 1653436691. The reversal of 1653436654 is 4566343561.

It is a self number, because there is not a number n which added to its sum of digits gives 1653436654.

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, 161562 + ... + 171490.

It is an arithmetic number, because the mean of its divisors is an integer number (158050845).

Almost surely, 2^1653436654 is an apocalyptic number.

1653436654 is a deficient number, since it is larger than the sum of its proper divisors (875376866).

1653436654 is a wasteful number, since it uses less digits than its factorization.

1653436654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11555.

The product of its digits is 777600, while the sum is 43.

The square root of 1653436654 is about 40662.4723055547. The cubic root of 1653436654 is about 1182.4855808024.

The spelling of 1653436654 in words is "one billion, six hundred fifty-three million, four hundred thirty-six thousand, six hundred fifty-four".