6651632743 has 6 divisors (see below), whose sum is σ = 7737613656. Its totient is φ = 5701399452.

The previous prime is 6651632731. The next prime is 6651632797. The reversal of 6651632743 is 3472361566.

It is not a de Polignac number, because 6651632743 - 2⁵ = 6651632711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6651632743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651632843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67873755 + ... + 67873852.

It is an arithmetic number, because the mean of its divisors is an integer number (1289602276).

Almost surely, 2^6651632743 is an apocalyptic number.

6651632743 is a deficient number, since it is larger than the sum of its proper divisors (1085980913).

6651632743 is a wasteful number, since it uses less digits than its factorization.

6651632743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135747621 (or 135747614 counting only the distinct ones).

The product of its digits is 544320, while the sum is 43.

The square root of 6651632743 is about 81557.5425267338. The cubic root of 6651632743 is about 1880.6562465857.

The spelling of 6651632743 in words is "six billion, six hundred fifty-one million, six hundred thirty-two thousand, seven hundred forty-three".