40466636323452 has 96 divisors (see below), whose sum is σ = 105927576249600. Its totient is φ = 13358577692736.

The previous prime is 40466636323403. The next prime is 40466636323549. The reversal of 40466636323452 is 25432363666404.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35998074 + ... + 37105182.

It is an arithmetic number, because the mean of its divisors is an integer number (1103412252600).

Almost surely, 2^{40466636323452} 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 40466636323452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52963788124800).

40466636323452 is an abundant number, since it is smaller than the sum of its proper divisors (65460939926148).

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

40466636323452 is a wasteful number, since it uses less digits than its factorization.

40466636323452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110392 (or 1110384 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 54.

Adding to 40466636323452 its reverse (25432363666404), we get a palindrome (65898999989856).

The spelling of 40466636323452 in words is "forty trillion, four hundred sixty-six billion, six hundred thirty-six million, three hundred twenty-three thousand, four hundred fifty-two".