61008169212 has 36 divisors (see below), whose sum is σ = 163286572176. Its totient is φ = 19139817600.

The previous prime is 61008169199. The next prime is 61008169237. The reversal of 61008169212 is 21296180016.

61008169212 is a `hidden beast` number, since 610 + 0 + 8 + 16 + 9 + 21 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49842664 + ... + 49843887.

It is an arithmetic number, because the mean of its divisors is an integer number (4535738116).

Almost surely, 2^61008169212 is an apocalyptic number.

It is an amenable number.

61008169212 is an abundant number, since it is smaller than the sum of its proper divisors (102278402964).

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

61008169212 is a wasteful number, since it uses less digits than its factorization.

61008169212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99686578 (or 99686573 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 61008169212 in words is "sixty-one billion, eight million, one hundred sixty-nine thousand, two hundred twelve".