40121135560 has 32 divisors (see below), whose sum is σ = 98479152000. Its totient is φ = 14589503680.

The previous prime is 40121135539. The next prime is 40121135591. The reversal of 40121135560 is 6553112104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45591760 + ... + 45592639.

It is an arithmetic number, because the mean of its divisors is an integer number (3077473500).

Almost surely, 2^40121135560 is an apocalyptic number.

40121135560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40121135560 is an abundant number, since it is smaller than the sum of its proper divisors (58358016440).

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

40121135560 is a wasteful number, since it uses less digits than its factorization.

40121135560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91184421 (or 91184417 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 40121135560 its reverse (6553112104), we get a palindrome (46674247664).

The spelling of 40121135560 in words is "forty billion, one hundred twenty-one million, one hundred thirty-five thousand, five hundred sixty".