400205433411545 has 16 divisors (see below), whose sum is σ = 500371411972608. Its totient is φ = 306940796670720.

The previous prime is 400205433411517. The next prime is 400205433411547. The reversal of 400205433411545 is 545114334502004.

It is not a de Polignac number, because 400205433411545 - 2¹⁰ = 400205433410521 is a prime.

It is a super-3 number, since 3×400205433411545³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400205433411547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12065266304 + ... + 12065299473.

It is an arithmetic number, because the mean of its divisors is an integer number (31273213248288).

Almost surely, 2^{400205433411545} is an apocalyptic number.

It is an amenable number.

400205433411545 is a deficient number, since it is larger than the sum of its proper divisors (100165978561063).

400205433411545 is a wasteful number, since it uses less digits than its factorization.

400205433411545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24130565920.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 400205433411545 its reverse (545114334502004), we get a palindrome (945319767913549).

The spelling of 400205433411545 in words is "four hundred trillion, two hundred five billion, four hundred thirty-three million, four hundred eleven thousand, five hundred forty-five".