16505246153 has 6 divisors (see below), whose sum is σ = 18142130202. Its totient is φ = 15004769120.

The previous prime is 16505246143. The next prime is 16505246183. The reversal of 16505246153 is 35164250561.

It can be written as a sum of positive squares in only one way, i.e., 11497843984 + 5007402169 = 107228^2 + 70763^2 .

It is not a de Polignac number, because 16505246153 - 2²² = 16501051849 is a prime.

It is a super-2 number, since 2×16505246153² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16505246143) 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, 68203376 + ... + 68203617.

It is an arithmetic number, because the mean of its divisors is an integer number (3023688367).

Almost surely, 2^16505246153 is an apocalyptic number.

It is an amenable number.

16505246153 is a deficient number, since it is larger than the sum of its proper divisors (1636884049).

16505246153 is a wasteful number, since it uses less digits than its factorization.

16505246153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136407015 (or 136407004 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 16505246153 in words is "sixteen billion, five hundred five million, two hundred forty-six thousand, one hundred fifty-three".