40215061012 has 48 divisors (see below), whose sum is σ = 82183546368. Its totient is φ = 16859669760.

The previous prime is 40215060971. The next prime is 40215061039. The reversal of 40215061012 is 21016051204.

It is a super-2 number, since 2×40215061012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2995098 + ... + 3008494.

It is an arithmetic number, because the mean of its divisors is an integer number (1712157216).

Almost surely, 2^40215061012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40215061012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41091773184).

40215061012 is an abundant number, since it is smaller than the sum of its proper divisors (41968485356).

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

40215061012 is a wasteful number, since it uses less digits than its factorization.

40215061012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15736 (or 15734 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The spelling of 40215061012 in words is "forty billion, two hundred fifteen million, sixty-one thousand, twelve".