16465152021 has 8 divisors (see below), whose sum is σ = 22024127424. Its totient is φ = 10941472320.

The previous prime is 16465152013. The next prime is 16465152023. The reversal of 16465152021 is 12025156461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16465152021 - 2³ = 16465152013 is a prime.

It is a super-2 number, since 2×16465152021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16465152023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8822836 + ... + 8824701.

It is an arithmetic number, because the mean of its divisors is an integer number (2753015928).

Almost surely, 2^16465152021 is an apocalyptic number.

It is an amenable number.

16465152021 is a deficient number, since it is larger than the sum of its proper divisors (5558975403).

16465152021 is a wasteful number, since it uses less digits than its factorization.

16465152021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17647851.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 16465152021 in words is "sixteen billion, four hundred sixty-five million, one hundred fifty-two thousand, twenty-one".