134511433661 has 32 divisors (see below), whose sum is σ = 152157970560. Its totient is φ = 118816346880.

The previous prime is 134511433657. The next prime is 134511433781. The reversal of 134511433661 is 166334115431.

It is not a de Polignac number, because 134511433661 - 2² = 134511433657 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134511433601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49688870 + ... + 49691576.

It is an arithmetic number, because the mean of its divisors is an integer number (4754936580).

Almost surely, 2^134511433661 is an apocalyptic number.

134511433661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134511433661 is a deficient number, since it is larger than the sum of its proper divisors (17646536899).

134511433661 is a wasteful number, since it uses less digits than its factorization.

134511433661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786 (or 3764 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The spelling of 134511433661 in words is "one hundred thirty-four billion, five hundred eleven million, four hundred thirty-three thousand, six hundred sixty-one".