149680069261 has 4 divisors (see below), whose sum is σ = 154508458624. Its totient is φ = 144851679900.

The previous prime is 149680069237. The next prime is 149680069283. The reversal of 149680069261 is 162960086941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149680069261 - 2²¹ = 149677972109 is a prime.

It is a super-2 number, since 2×149680069261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149680069199 and 149680069208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149680069061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2414194635 + ... + 2414194696.

It is an arithmetic number, because the mean of its divisors is an integer number (38627114656).

Almost surely, 2^149680069261 is an apocalyptic number.

It is an amenable number.

149680069261 is a deficient number, since it is larger than the sum of its proper divisors (4828389363).

149680069261 is an equidigital number, since it uses as much as digits as its factorization.

149680069261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828389362.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 149680069261 in words is "one hundred forty-nine billion, six hundred eighty million, sixty-nine thousand, two hundred sixty-one".