1601701005651 has 48 divisors (see below), whose sum is σ = 2276668548000. Its totient is φ = 1001406468096.

The previous prime is 1601701005637. The next prime is 1601701005659. The reversal of 1601701005651 is 1565001071061.

It is not a de Polignac number, because 1601701005651 - 2³³ = 1593111071059 is a prime.

It is a super-2 number, since 2×1601701005651² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1601701005659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143657625 + ... + 143668773.

It is an arithmetic number, because the mean of its divisors is an integer number (47430594750).

Almost surely, 2^{1601701005651} is an apocalyptic number.

1601701005651 is a deficient number, since it is larger than the sum of its proper divisors (674967542349).

1601701005651 is a wasteful number, since it uses less digits than its factorization.

1601701005651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12516 (or 12497 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 33.

The spelling of 1601701005651 in words is "one trillion, six hundred one billion, seven hundred one million, five thousand, six hundred fifty-one".