67209497916 has 36 divisors (see below), whose sum is σ = 172374776616. Its totient is φ = 20366514080.

The previous prime is 67209497903. The next prime is 67209497917. The reversal of 67209497916 is 61979490276.

It is a super-2 number, since 2×67209497916² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67209497916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67209497917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23142315 + ... + 23145218.

Almost surely, 2^67209497916 is an apocalyptic number.

67209497916 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

67209497916 is an abundant number, since it is smaller than the sum of its proper divisors (105165278700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67209497916 is a wasteful number, since it uses less digits than its factorization.

67209497916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46287562 (or 46287549 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 60.

The spelling of 67209497916 in words is "sixty-seven billion, two hundred nine million, four hundred ninety-seven thousand, nine hundred sixteen".