3946156649703 has 64 divisors (see below), whose sum is σ = 5893843545600. Its totient is φ = 2609433066240.

The previous prime is 3946156649689. The next prime is 3946156649737. The reversal of 3946156649703 is 3079466516493.

3946156649703 is a `hidden beast` number, since 3 + 9 + 4 + 61 + 566 + 4 + 9 + 7 + 0 + 3 = 666.

It is not a de Polignac number, because 3946156649703 - 2³³ = 3937566715111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946156629703) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1619267001 + ... + 1619269437.

It is an arithmetic number, because the mean of its divisors is an integer number (92091305400).

Almost surely, 2^{3946156649703} is an apocalyptic number.

3946156649703 is a deficient number, since it is larger than the sum of its proper divisors (1947686895897).

3946156649703 is a wasteful number, since it uses less digits than its factorization.

3946156649703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629 (or 3623 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 63.

The spelling of 3946156649703 in words is "three trillion, nine hundred forty-six billion, one hundred fifty-six million, six hundred forty-nine thousand, seven hundred three".