40651551546 has 16 divisors (see below), whose sum is σ = 86085638784. Its totient is φ = 12753427904.

The previous prime is 40651551541. The next prime is 40651551553. The reversal of 40651551546 is 64515515604.

It is a junction number, because it is equal to n+sod(n) for n = 40651551498 and 40651551507.

It is not an unprimeable number, because it can be changed into a prime (40651551541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199272210 + ... + 199272413.

It is an arithmetic number, because the mean of its divisors is an integer number (5380352424).

Almost surely, 2^40651551546 is an apocalyptic number.

40651551546 is an abundant number, since it is smaller than the sum of its proper divisors (45434087238).

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

40651551546 is a wasteful number, since it uses less digits than its factorization.

40651551546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398544645.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 40651551546 in words is "forty billion, six hundred fifty-one million, five hundred fifty-one thousand, five hundred forty-six".