61123158400 has 96 divisors (see below), whose sum is σ = 154505122200. Its totient is φ = 23880622080.

The previous prime is 61123158379. The next prime is 61123158401. The reversal of 61123158400 is 485132116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61123158401) 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, 84505 + ... + 359704.

Almost surely, 2^61123158400 is an apocalyptic number.

It is an amenable number.

61123158400 is an abundant number, since it is smaller than the sum of its proper divisors (93381963800).

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

61123158400 is a wasteful number, since it uses less digits than its factorization.

61123158400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444276 (or 444259 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 61123158400 in words is "sixty-one billion, one hundred twenty-three million, one hundred fifty-eight thousand, four hundred".