153449666145 has 24 divisors (see below), whose sum is σ = 277543745856. Its totient is φ = 78281568288.

The previous prime is 153449666131. The next prime is 153449666147. The reversal of 153449666145 is 541666944351.

It is not a de Polignac number, because 153449666145 - 2¹⁴ = 153449649761 is a prime.

It is a super-2 number, since 2×153449666145² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 153449666091 and 153449666100.

It is not an unprimeable number, because it can be changed into a prime (153449666147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74129239 + ... + 74131308.

It is an arithmetic number, because the mean of its divisors is an integer number (11564322744).

Almost surely, 2^153449666145 is an apocalyptic number.

153449666145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

153449666145 is a deficient number, since it is larger than the sum of its proper divisors (124094079711).

153449666145 is a wasteful number, since it uses less digits than its factorization.

153449666145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148260581 (or 148260578 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The spelling of 153449666145 in words is "one hundred fifty-three billion, four hundred forty-nine million, six hundred sixty-six thousand, one hundred forty-five".